When trying to get access to streaming radio via the stations listed in iTunes 7, I get the message that iTunes cannot contact the radio tuning service (see att.). This is a recent occurrence that may be related to troubles with my Network Prefs, which I have locked, so will test that theory, but has anyone else met this problem?

It's seems to be working fine here...If your internet is working normally, this should work too. Are you using the latest version of iTunes?

No, and I don't want to. v7 is fine for what I need to do, and radio was working tickety-boo with v7 until about a week ago, which, from memory, was when I last tried to tune in.

You're right about the SysPref settings, it's just that I've had so much cr*p with the bug in the last update trying to tell me my network settings have been changed by another application, that I've adopted a "blame the SysPrefs" for everything from famine in Africa to the weather locally.